Low driving voltage in organic light-emitting diodes with NPB/MoO3/NPB as a hole transport layer].

Driving voltage of organic light-emitting diodes (OLEDs) was lowered by applying (NPB/MoO3)(x)/NPB as a hole transport layer (HTL). (NPB/MoO3)(x) was multi-layer periodic (MLP) structure with x changed from 0 to 3. Compared with the conventional device with 0-periodic structure, the driving voltage of the device with 1-periodic structure was the lowest. This was due to charge transfer (CT) complex formation between NPB and MoO3. The driving voltage of tris (8-hydroxyquinoline) aluminum (Alq3)-based organic light-emitting devices (OLEDs) could be lowered by 0. 8 V at 1 000 cd x m(-2) by using multiple structure of NPB/MoO3/NPB.

Citation

Guo-Qiang Liu, Wen-Yu Ji, Wen-Fa Xie, Han-Zhuang Zhang. Low driving voltage in organic light-emitting diodes with NPB/MoO3/NPB as a hole transport layer]. Guang pu xue yu guang pu fen xi = Guang pu. 2011 Apr;31(4):882-5

PMID: 21714220

search → result